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根据鸡精复合调味料的使用状况和消费者的需求,纯白汤型鸡精、火锅专用鸡精、炒菜专用鸡精、耐高温蒸煮鸡精等成为鸡精调配技术发展动向。很多企业鸡精生产设备及其工艺不合理、造粒难、造高档鸡精难、维修难、能耗高、损耗大,要求站在专业自动化、连续、高效节能生产鸡精复合调味料的技术发展前沿。并对鸡精复合调味料在销售及其运输过程中的吸潮的技术问题进行探讨。 相似文献
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根据鸡精复合调味料的使用状况和消费者的需求,纯白汤型鸡精、火锅专用鸡精、炒菜专用鸡精、耐高温蒸煮鸡精等成为鸡精调配技术发展动向。很多企业生产鸡精的生产设备及其工艺不合理、造粒难、造高档鸡精难、维修难、能耗高、损耗大,需要专业自动化、连续、高效节能生产鸡精复合调味料的发展技术。同时针对鸡精复合调味料在销售及其运输过程中的吸潮技术问题进行探讨。 相似文献
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本文简单介绍了生物传感器的概念、组成、分类、特点及检测原理, 并对近年来生物传感器在食品品质及其质量安全检测中的应用作了概括介绍, 主要包括食品成分、品质指标、食品添加剂、有害微生物、农兽药残留、生物毒素、重金属和转基因食品的检测。对生物传感器的不足作出了评价, 并预测和展望了其发展前景。 相似文献
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The refractive index of milk samples was measured with a reflectometer. Fresnel's formula for intensity reflectance and the concept of critical angle were applied to measured data. Milk samples were also measured with surface plasmon resonance sensor for refractive index assessment. The experiments were carried with commercial milk that had fat volume concentrations of 0.004, 1.53, and 3.55%. We observed that simultaneously quantitative information about the refractive index and absorption of milk, as a function of fat concentration, could be obtained with both devices. 相似文献
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R.J. De KANTEREWICZ B.E. ELIZALDE A.M.R. PILOSOF G.B. BARTHOLOMAI 《Journal of food science》1987,52(5):1381-1383
An index for describing the relative hydrophilic-lipophilic character of proteins was proposed based on the measurement of the “spontanoeous water and oil uptake”. The water-oil absorption index (WOAI) showed a defined correlation with emulsifying capacity (EC) for most proteins making it possible to predict EC in a simple way. Maximum emulsion capacity was achieved when the WOAI was nearly two, that is when the protein absorbed twofold more water than oil. Proteins with WAOI greater than two had increasingly hydrophilic characteristics and concomitantly increasingly low EC. Proteins with WOAI lower than two showed increasingly lipophilic characteristics and concomitantly increasing low emulsifying capacity. The finding of this study supports the concept that emulsifying capacity of proteins depends on the suitable balance between the hydrophilic and lipophilic characteristics, rather than merely high values for each one. 相似文献
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该文通过白酒醉酒度概念的提出、白酒醉酒度评价方法的研究、不同白酒的醉酒度评价、不同醉酒度白酒对机体相关指标影响的研究以及建立白酒醉酒度评价标准的探讨,提出了"醉酒度"是影响白酒质量的重要特性,是评价人体饮用白酒后舒适性的一项关键指标,低醉酒度是白酒健康的新高度。同时,也指出,将醉酒度作为白酒评价标准的指标之一,是一项任重而道远的工作。白酒醉酒度的提出和应用,对白酒的产品质量提升具有指导意义和应用价值。 相似文献
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消费者价格指数(CPI)和生产者价格指数(PPI)是衡量物价水平的两大重要指标.为研究CPI和PPI间的联系,引入混合Copula函数的概念,结合三种常用的阿基米德Copula函数的加权和分析两者之间的相关性.选取1994年1月1日到2016年12月1日的CPI和PPI数据,求出其对应的对数环比增长率.利用核密度估计模型建立变量的边缘密度函数,并利用EM算法与BFGS算法对模型进行参数估计,最后利用最小欧式距离法对模型进行检验.结果表明,CPI与PPI在经济衰退时期的相关性表现更为紧密. 相似文献
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研究引入了色率、黄色指数、红色指数、玫瑰紫指数的概念,建立了对玫瑰醋色泽进行量化评价的方法。即将食醋稀释50%后,5000r/min离心30min,取上清液分别测其在波长460nm、510nm、530nm、610nm处的吸光度值,分别用10×lg(OD460nm/OD610nm)、10×lg(OD510nm/OD610nm)、10×lg(OD530nm/OD610nm)、OD610nm×20000/0.076来表示食醋的黄色指数、红色指数、玫瑰醋紫指数和色率,并用这种方法评价了保温后熟及保藏条件对食醋色泽的影响。通过试验发现在试验设计的保温时间范围内,色率随保温时间的增加呈下降趋势;黄色指数、红色指数、玫瑰紫指数随着保温时间缓慢增大;常温保藏比4℃保藏样品的色率更高,而黄色指数、红色指数、玫瑰紫指数则是4℃保藏样品比常温保藏的高。 相似文献
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Fresh foods occupy an important position in the human diet. A growing number of consumers are attracted by fresh foods due to their high nutritional value, healthy image, and appealing taste. Electronic tongue based on the concept of global selectivity is a sensor technology that has developed rapidly since last century (1998). Compared with human panelists, it has the advantages of measuring toxic substances, conducting objective analysis and having no detection fatigue. In this paper, the principle, types, and characteristics of electronic tongue are described. The application of electronic tongue to measure sensory and safety index is discussed. Finally, the development of miniaturization of electronic tongues is presented. 相似文献
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介绍了面状纤维集合体孔隙相的基本概念 ,表征了面状纤维集合体孔隙相构造主要指标的理论基础及可行测试方法 ,并指出面状纤维集合体的孔隙相构造理论对非织造布产品研究的重要意义。 相似文献
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本文介绍了面状纤维集合体孔隙相的基本概念 ,表征了面状纤维集合体孔隙相构造主要指标的理论基础及可行测试方法 ,并指出面状纤维集合体的孔隙相构造理论对非织造布产品研究的重要意义 相似文献